气候变化领域集成服务门户(CCPortal): Secondary aerosol formation in cloud serves as a vital source of aerosol in the troposphere

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DOI	10.1016/j.atmosenv.2021.118374
	Secondary aerosol formation in cloud serves as a vital source of aerosol in the troposphere
	Quan J.; Wang Q.; Ma P.; Dou Y.; Liao Z.; Pan Y.; Cheng Z.; Ding D.; Jia X.
发表日期	2021
ISSN	1352-2310
卷号	253
英文摘要	Aircraft measurements of aerosols number concentration (Na) and composition, gas pollutants (SO2, CO), and meteorological variables (temperature (T), wind, relative humidity (RH)) conducted over North China Plain during 2007–2011 were analyzed to explore the role of cloud in secondary aerosol formation in the troposphere. The results show that aerosols in the troposphere increased significantly under cloud condition. The Na in the 2–3.6 km layer in cloud group was nearly 2 times of that in un-cloud groups. Further analysis of the relationships among SO2, CO and aerosol show that aerosol/CO increased, while SO2/aerosol decreased in the 2–3.6 km layer in cloud group, suggesting that the gas-to-particle conversion for SO2 was accelerated in cloud. The profiles of aerosol composition further corroborated this viewpoint. The mass fraction of sulfate increased from 13.3% in the 0–1 km layer to 42.7% in the 2–3.6 km layer in cloud group with increasing rate of 221%, much higher than un-cloud groups. The observations in this work suggested that the aerosol number concentration in the 2–3.6 layer in cloud group increased by 63.9%–185%, and the aerosol mass concentration increased by 34.8%–287%. © 2021 Elsevier Ltd
关键词	Aerosol Cloud Gas-to-particle conversion Troposphere
语种	英语
scopus关键词	Aerosols; Clouds; Sulfur compounds; Aerosol formation; Aircraft measurement; Gas pollutants; Gas-to-particle conversion; Measurements of; Meteorological variables; Number concentration; Secondary aerosols; SO$-2$; Vital sources; Troposphere; ammonia; carbon monoxide; chloride; nitrate; sulfate; sulfur dioxide; aerosol; aerosol composition; aerosol formation; airborne survey; cloud; concentration (composition); troposphere; aerosol; altitude; Article; atmospheric diffusion; chemical composition; chemical reaction; cloud; data analysis; dust; high temperature; low temperature; lung diffusion capacity; meteorology; priority journal; troposphere; wind speed; China; North China Plain
来源期刊	ATMOSPHERIC ENVIRONMENT
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/248497
作者单位	Institute of Urban Meteorology, Chinese Meteorological Administration, Beijing, China; Beijing Key Laboratory of Cloud, Precipitation, and Atmospheric Water Resources, Beijing, China
推荐引用方式 GB/T 7714	Quan J.,Wang Q.,Ma P.,et al. Secondary aerosol formation in cloud serves as a vital source of aerosol in the troposphere[J],2021,253.
APA	Quan J..,Wang Q..,Ma P..,Dou Y..,Liao Z..,...&Jia X..(2021).Secondary aerosol formation in cloud serves as a vital source of aerosol in the troposphere.ATMOSPHERIC ENVIRONMENT,253.
MLA	Quan J.,et al."Secondary aerosol formation in cloud serves as a vital source of aerosol in the troposphere".ATMOSPHERIC ENVIRONMENT 253(2021).